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Cyrill Wehling, Oliver Amon, Martin Bommer, Bernd Hoppe, Karim Kentouche, Gesa Schalk, Rolf Weimer, Michael Wiesener, Bernd Hohenstein, Burkhard Tönshoff, Rainer Büscher, Henry Fehrenbach, Ömer-Necmi Gök, Michael Kirschfink
Various complement-mediated renal disorders are currently treated with the complement inhibitor eculizumab. By blocking the cleavage of C5 this monoclonal antibody prevents cell damage caused by complement-mediated inflammation. We included 23 patients with atypical hemolytic uremic syndrome (aHUS, n=12), C3 glomerulopathies (C3G, n=9) and acute antibody-mediated renal graft rejection (AMR, n=2), treated with eculizumab in 12 hospitals in Germany. We explored the course of complement activation biomarkers and the benefit of therapeutic drug monitoring of eculizumab...
October 26, 2016: Clinical and Experimental Immunology
Luis Sendra Gisbert, Antonio Miguel Matas, Luis Sabater Ortí, María José Herrero Cervera, Laura Sabater Olivas, Eva María Montalvá Orón, Matteo Frasson, Rafael Abargues López, Rafael López-Andújar, Eduardo García-Granero Ximénez, Salvador Francisco Aliño Pellicer
: Different diseases lead, during their advanced stages, to chronic or acute liver failure, whose unique treatment consists in organ transplantation. The success of intervention is limited by host immune response and graft rejection. Immunosuppressant drugs permitted improving organ transplantation but they cannot completely solve the problem and their management is delicate, especially during the early stages of treatment. Thus, new tools to set an efficient modulation of immune response are required...
October 26, 2016: Liver Transplantation
Stefan Aufderklamm, Martin Vaegler, Alexandra Kelp, Sabine Maurer, Leon Gustafsson, Jens Mundhenk, Silke Busch, Lisa Daum, Arnulf Stenzl, Bastian Amend, Karl-Dietrich Sievert
PURPOSE: Urethral strictures are a common disease of the lower urinary tract in men. At present, the use of buccal mucosa is the method of choice for long or recurrent strictures. However, autologous tissue-engineered grafts are still under investigation for reconstructive urological surgery. The aim of this pilot study was to evaluate the use of human urothelial cells (HUC) seeded on bovine collagen type I-based cell carriers (CCC) in an animal model and to evaluate short-term outcome of the surgical procedure...
October 25, 2016: World Journal of Urology
Cem Tuğmen, Maşallah Baran, İsmail Sert, Ayşe Berna Anıl, Eyüp Kebapçı, Sait Murat Doğan, Selçuk Kılınç, Gaye Aydın, Ayşe Gülden Diniz, Mustafa Ölmez, İbrahim Pirim, Cezmi Karaca
BACKGROUND/AIMS: Small bowel transplantation (SBTx) is a treatment option for patients with serious parenteral nutrition-related problems in intestinal failure. İzmir Tepecik Training Research Hospital Organ Transplantation Center is still the only pediatric intestinal transplant center in Turkey. MATERIAL AND METHODS: This study was approved by the local ethics committee. Patients' data were analyzed from the medical charts and the hospital digital database. Seven isolated SBTxs were performed in six children between 2010 and 2016...
September 2016: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
Martin T King, Cesare H Jenkins, Conroy Sun, Colin M Carpenter, Xiaowei Ma, Kai Cheng, Quynh-Thu Le, John B Sunwoo, Zhen Cheng, Guillem Pratx, Lei Xing
PURPOSE: Flexible radioluminescence imaging (Flex-RLI) is an optical method for imaging (18)F-fluorodeoxyglucose (FDG)-avid tumors. The authors hypothesize that a gadolinium oxysulfide: terbium (GOS:Tb) flexible scintillator, which loosely conforms to the body contour, can enhance tumor signal-to-background ratio (SBR) compared with RLI, which utilizes a flat scintillator. The purpose of this paper is to characterize flex-RLI with respect to alternative modalities including RLI, beta-RLI (RLI with gamma rejection), and Cerenkov luminescence imaging (CLI)...
October 2016: Medical Physics
Hee Joong Kim, Dong-Gyun Kim, Kyuchul Lee, Youngbin Baek, Youngjae Yoo, Yong Seok Kim, Byoung Gak Kim, Jong-Chan Lee
As insufficient access to clean water is expected to become worse in the near future, water purification is becoming increasingly important. Membrane filtration is the most promising technologies to produce clean water from contaminated water. Although there have been many studies to prepare highly water-permeable carbon-based membranes by utilizing frictionless water flow inside the carbonaceous pores, the carbon-based membranes still suffer from several issues, such as high cost and complicated fabrication as well as relatively low salt rejection...
October 26, 2016: Scientific Reports
Sze Ming Fu, Yan Kai Zhong, Ming Hsiang Tu, Bo Ruei Chen, Albert Lin
Broadband perfect metamaterial absorbers have been drawing significant attention in recent years. A close-to-unity absorption over a broad spectral range is established and this facilitates many photonic applications. A more challenging goal is to construct a broadband absorber with a tailored spectral absorption. The spectral absorption control and spectral shaping are very critical in many applications, such as thermal-photovoltaic, thermal emitters, spectrum imaging system, biomedical and extraterrestrial sensing, and refractive index sensor...
October 26, 2016: Scientific Reports
Su Lee, Chan-Duck Kim, Kyu Huh, Baik-Hwan Cho, Man Ju, Dong Lee, Hong Cho, Jong-Won Park, Jung Lee, Samuel Lee, Byung So, Chang-Kwon Oh, Yu Kim
AIMS: The tablet form (500 mg) of mycophenolate mofetil (MMF) provides more convenience of taking drugs and cost-effectiveness than the capsule form (250 mg). We examined the efficacy and safety of MMF in its different forms combined with tacrolimus in kidney transplant recipients. METHODS: This multicenter, 26-week, randomized trial was performed to compare the efficacy and safety of the tablet form of MMF versus the capsule form of MMF in 156 kidney transplant recipients...
October 26, 2016: Clinical Nephrology
Thomas Nicholson, Catherine Admay, Aaron Shakow, Salmaan Keshavjee
The human rights arguments that underpinned the fight against HIV over the last three decades were poised, but ultimately failed, to provide a similar foundation for success against multidrug-resistant TB (MDR-TB) and other diseases of the poor. With more than 1.5 million deaths since 2000 attributed to strains of MDR-TB, and with half a million new, and mostly untreated, MDR-TB cases in the world each year, the stakes could not be higher. The World Health Organization (WHO), whose mandate is to champion the attainment by all peoples of the highest possible level of health, recommended unsound medical treatment for MDR-TB patients in resource-poor settings from 1993-2002...
June 2016: Health and Human Rights
Mehrdad Namdari, Ali Eatemadi
Heart valves are currently under thorough investigation in tissue engineering (TE) research. Mechanical and biological heart valve prostheses which are recently used have several shortcomings. While allogenic and xenogenic biological prostheses are related to graft rejection, degeneration and thrombosis, resulting in a high rate of reoperation. Mechanical prostheses on the other hand are based on metallic, carbon, and polymeric components, and require continuous treatment with anticoagulant, which result in adverse reactions, e...
October 22, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Johan De Meester
From late nineteen nineties, the higher number of suitable renal transplant candidates has forced the transplant community to re-explore the whole spectrum of deceased donors after brain death (DBD) as well as after cardiac death (DCD); in practice, donors of older age and donors with more chronic diseases or "medical complexities". This new kidney donor population - finally defined as extended criteria donors (ECD) - currently comprises on average 20 to 25%. In his seminal paper in 2003 on the introduction of ECD in the US, Metzger et al...
October 25, 2016: Transplant International: Official Journal of the European Society for Organ Transplantation
Efrem S Lim, Daniel Brennan
No abstract text is available yet for this article.
October 24, 2016: Transplantation
Ana Isabel Sánchez-Fructuoso, Isabel Pérez-Flores, Rosalia Valero, Maria Angeles Moreno, Miguel Fernandez-Arquero, Elena Urcelay, Cristina Fernández-Pérez, Jose Luis Santiago
The -308G/A SNP of tumor necrosis factor-alpha (TNF-α) gene affects TNF-α production. As its impact on transplant outcome remains open to debate, we decided to genotype it in a cohort of transplant subjects. A retrospective analysis of 439 first kidney recipients randomly divided into two subgroups (discovery and validation cohorts) was performed to identify the best predictors of acute rejection (AR). The effect on transplant outcome was analyzed by an adjusted logistic regression model. Carriers of the A allele, associated with elevated TNF-α production, presented a higher risk of AR (OR = 2...
2016: Journal of Immunology Research
Jillian Reardon, Trana Hussaini, Majid Alsahafi, Vladimir Marquez Azalgara, Siegfried R Erb, Nilufar Partovi, Eric M Yoshida
Aims: To systematically evaluate the literature for evidence to support the use of bile acids in non-cholestatic liver conditions. Methods: Searches were conducted on the databases of Medline (1948-March 31, 2015), Embase (1980-March 31, 2015) and the Cochrane Central Register of Controlled Trials, and on Google and Google Scholar to identify articles describing ursodeoxycholic acid (UDCA) and its derivatives for non-cholestatic hepatic indications. Combinations of the following search terms were used: ursodeoxycholic acid, ursodiol, bile acids and/or salts, non alcoholic fatty liver, non alcoholic steatohepatitis, fatty liver, alcoholic hepatitis, alcohol, liver disease, autoimmune, autoimmune hepatitis, liver transplant, liver graft, transplant rejection, graft rejection, ischemic reperfusion injury, reperfusion injury, hepatitis B, hepatitis C, viral hepatitis, chronic hepatitis, acute hepatitis, transaminases, alanine transaminase, liver enzymes, aspartate aminotransferase, gamma-glutamyl transferase, gamma-glutamyl transpeptidase, bilirubin, alkaline phosphatase...
September 28, 2016: Journal of Clinical and Translational Hepatology
Sgb Furness, D L Hare, A Kourakis, A M Turnley, P J Wookey
We have discovered that the accumulation of an anti-calcitonin receptor (anti-CTR) antibody conjugated to a fluorophore (mAb2C4:AF568) provides a robust signal for cells undergoing apoptotic programmed cell death (PCD). PCD is an absolute requirement for normal development of metazoan organisms. PCD is a hallmark of common diseases such as cardiovascular disease and tissue rejection in graft versus host pathologies, and chemotherapeutics work by increasing PCD. This robust signal or high fluorescent events were verified by confocal microscopy and flow cytometry in several cell lines and a primary culture in which PCD had been induced...
2016: Cell Death Discovery
Michael Ong, Andrea Marie Ibrahim, Samuel Bourassa-Blanchette, Christina Canil, Todd Fairhead, Greg Knoll
BACKGROUND: Nivolumab (Opdivo™) is a novel IgG4 subclass programmed death-1 (PD-1) inhibiting antibody that has demonstrated breakthrough-designation anti-tumor activity. To date, clinical trials of nivolumab and other checkpoint inhibitors have generally excluded patients with solid organ transplantation and patients with concurrent immunosuppression. However, organ transplant recipients are at high-risk of development of malignancy as a result of suppressed immune surveillance of cancer...
2016: Journal for Immunotherapy of Cancer
Rosa M Michel Ortega, Daynna J Wolff, Cynthia A Schandl, Harry A Drabkin
BACKGROUND: Malignancy after transplantation is an uncommon multifactorial occurrence. Immunosuppression to prevent graft rejection is described as a major risk factor in malignancy development in the post-transplant state. Donor-derived malignancy is a rare reported complication. Herein, we review our patient history and discuss diagnostic strategies and the implications of immunosuppression for donor-derived malignancy. CASE PRESENTATION: This is a 69-year-old man with post-renal-transplant urothelial carcinoma determined to be of donor origin...
2016: Journal for Immunotherapy of Cancer
Gili Freedman, Kipling D Williams, Jennifer S Beer
Social exclusion is an interactive process between multiple people, yet previous research has focused almost solely on the negative impacts on targets. What advice is there for people on the other side (i.e., sources) who want to minimize its negative impact and preserve their own reputation? To provide an impetus for research on the interactive nature of exclusion, we propose the Responsive Theory of Social Exclusion. Our theory postulates that targets and sources' needs are better maintained if sources use clear, explicit verbal communication...
2016: Frontiers in Psychology
K A Hollowed, T E Travis, M H Jordan, J W Shupp
Education of first responders and referring medical professionals is considered vital to high-quality burn care. Prior to 1999, the community education program at The Burn Center of MedStar Washington Hospital Center (MWHC) was staffed by ICU nurses who volunteered their time. As the program became more popular in the mid-1990s, the requests for lectures exceeded the capacity of a volunteer program. A request to hospital administration for a full-time education coordinator position was rejected in the climate of budget cut-backs and declining reimbursement...
December 31, 2015: Annals of Burns and Fire Disasters
Thabo Lapp, Antonia Hildebrand, Daniel Böhringer, Paola Kammrath Betancor, Günther Schlunck, Thomas Reinhard
PURPOSE: To evaluate the feasibility of anterior segment spectral domain optic coherence tomography (ASOCT) as rejection readout in a keratoplasty mouse model and to compare ASOCT against the current standard (i.e., a clinical score system). Furthermore, to compare both approaches with respect to intra- and inter-individual observer variability and to calculate a critical point that distinguishes between rejection and non-rejection in ASOCT analysis. METHODS: Allogeneic penetrating keratoplasties (PKs) were performed using C3H/He donor mice and BALB/c recipient mice; syngeneic transplantations served as controls using BALB/c donors and recipients...
2016: Molecular Vision
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